Technomarine Men's 'Titanium Reef' Quartz Silicone Casual Watch, Color:Black (Model: TM-515001) Charcoal carbon fiber dial with gunmetal luminous hands and silver hour markers, chronograph with 60 s, 30 m, and day sub dials, date display, black silicone band and screw down crown 48mm titanium case with sapphire crystal Quartz Movement Case Diameter: 48mm Water resistant to 100m (330ft): in general, suitable for swimming and snorkeling, but not diving